static void OnGroupDisplayBindingChanged(BindableObject bindable, BindingBase oldValue, BindingBase newValue)
{
var lv = (ListView)bindable;
if (newValue != null && lv.GroupHeaderTemplate != null)
{
lv.GroupHeaderTemplate = null;
Log.Warning("ListView", "GroupHeaderTemplate and GroupDisplayBinding can not be set at the same time, setting GroupHeaderTemplate to null");
}
}
